Mediates positive regulation of the ptsG/glcA and glcB genes by functioning as an antiterminator factor of transcription via its interaction with the RNA-antiterminator (RAT) sequence located upstream of the ptsG/glcA gene.

Also known as GlcA/glcB genes antiterminator (PtsG operon antiterminator).Mediates positive regulation of the ptsG/glcA and glcB genes by functioning as an antiterminator factor of transcription via its interaction with the RNA-antiterminator (RAT) sequence located upstream of the ptsG/glcA gene.